The Quarter Dollar is a United States coin worth 25 cents. It has been produced on and off since 1796 and consistently since 1831.
From its inception until 1964, the denomination was issued in silver; it underwent several design changes, including finally the silver Washington quarter (1932 - 1964) featuring the first President of the United States on the obverse and the American Eagle clutching a bunch of arrows on the reverse. Initially meant as a one-year design to commemorate 200 years since the birth of George Washington in 1932, the obverse became the definitive design for the denomination and has been used ever since. The reverse was issued in this form until 1998, after which time the series of State Quarters circulating commemoratives started being issued instead. Between 1999 and 2008, the United States Mint issued five different "state quarters" every year, each dedicated to one of the US states.
After the program ended, the US Mint began issuing quarters under the 2009 District of Columbia and US Territories Program; the six coins are in honour of the District of Columbia and five U.S. territories: the Commonwealth of Puerto Rico, Guam, American Samoa, the U.S. Virgin Islands and the Commonwealth of the Northern Mariana Islands. The coins were issued in equal sequential intervals in 2009 in the order listed. The series was followed by the America the Beautiful Quarters Program, running from 2010 to 2021 and consisting of 56 coins.
The quarter dollar has a copper inner core bonded to an outer layer of copper-nickel (75% copper, 25% nickel). | 
